Home / 991,628.28-1,487,548.08-317,468.52

Finding the Fourth Proportional to 991,628.28, 1,487,548.08 and 317,468.52

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Solution

The fourth proportional to 991,628.28, 1,487,548.08 and 317,468.52 is: 476,236.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,628.28 : 1,487,548.08 = 317,468.52 : x
  2. Step 2: Convert to fraction form
    991,628.28/1,487,548.08 = 317,468.52/x
  3. Step 3: Cross multiply
    991,628.28x = 1,487,548.08 × 317,468.52
  4. Step 4: Simplify right side
    991,628.28x = 472,249,687,386.44
  5. Step 5: Solve for x
    x = 472,249,687,386.44/991,628.28
  6. Step 6: Final answer
    x = 476,236.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.